I guess he should stop being a 'media image' phony who gives off the impression the sun shines out of his arse when he's a sour puss who can't take losing and his ego ensured he blames an injury for it.
For me, he was 100% against Rosol. I don't believe a fucking word of it. He's a phony prick and I can't wait for him to retire.
I don't think the injury played any part in the result vs Rosol, but if he's not 100%, he's not 100%, and you are not in the position to say he is lying, in fact, that's a very heavy thing to accuse Nadal of. You're calling Nadal a liar because you think he can't handle losing without a reason for it, but he didn't give any excuses of injury for losing vs Djokovic and now has beaten him three times in a row and probably should have been four in a row. So obviously Nadal is able to handle a loss, as he handled losing to Djokovic in 2011 and has outplayed him for the better part of four matches in 2011.
As for the media image, humble, positive all the time stuff, that's what his family/team created. No different than other top players, who are bullshitters, but that is what people want to see.